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(11)

EP 1 695 102 A1

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(43) Date of publication: 30.08.2006 Bulletin 2006/35 (21) Application number: 04813744.2 (22) Date of filing: 09.12.2004

(51) International Patent Classification (IPC):  G01R 31/28(2006.01) G01R 31/3185(2006.01) G01R 31/3187(2006.01) (86) International application number: PCT/US2004/041479 (87) International publication number: WO 2005/064355 (14.07.2005 Gazette 2005/28)

(84) Designated Contracting States: DE FR GB IE (30) Priority: 18.12.2003 US 742300 (71) Applicant: Xilinx, Inc. San Jose, California 95124 (US)	(72) Inventors: YUAN, Xiao-Jie San Jose, CA 95124 (US) HART, Michael, J. San Jose, CA 95124 (US) LING, Zicheng, Gary San Jose, CA 95124 (US) YOUNG, Steven, P. San Jose, CA 95124 (US) (74) Representative: Naismith, Robert Stewart et al Marks & Clerk 19 Royal Exchange Square GB-Glasgow G1 3AE GB-Glasgow G1 3AE (GB)